Finding the Fourth Proportional to 111,668.40, 154,115.70 and 63,937.08
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Solution
The fourth proportional to 111,668.40, 154,115.70 and 63,937.08 is: 88,240.79
Step by Step Solution
- Step 1: Write the proportion equation
111,668.40 : 154,115.70 = 63,937.08 : x - Step 2: Convert to fraction form
111,668.40/154,115.70 = 63,937.08/x - Step 3: Cross multiply
111,668.40x = 154,115.70 × 63,937.08 - Step 4: Simplify right side
111,668.40x = 9,853,707,840.16 - Step 5: Solve for x
x = 9,853,707,840.16/111,668.40 - Step 6: Final answer
x = 88,240.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.